If you're using SQL Server 2008 (or above), then this is the better solution: SELECT o.OrderId, (SELECT MAX(Price) FROM (VALUES (o.NegotiatedPrice),(o. Author: Remus Rusanu Subject:SQL Server Blog. Online non-NULL with values column add in SQL Server 2012 July 13th, 2011 Although RAID is not a part of a database like SQL Server, implementing RAID can directly affect the way SQL Server performs.There are many RAID arrays available such. Null is a special marker used in Structured Query Language (SQL) to indicate that a data value does not exist in the database. Introduced by the creator of the. In the simplest terms, a NULL value represents an unknown value. It's unknown in the sense that the value is: missing from the system, may not be applicable in the. SQL NULL Values. If a column in a table is optional, we can insert a new record or update an existing record without adding a value to this column. How do I select all the columns in a table that only contain NULL values for all the rows? I'm using MS SQL Server 2005. I'm trying to find out which columns are not. When building database tables you are faced with the decision of whether to allow NULL values or to not allow NULL values in your columns. By default SQL Server sets. I goggled and successful used this way of eliminating the null character: select Replaced = replace(‘BAD_STRING_OR_COLUMN_NAME’ COLLATE Latin1_General_BIN, nchar. SQL Server articles, scripts, and discussion groups.